Teri incorrectly solved the system of equations below. Correctly identify the error Teri made.

2x - 10 y = -30

x - 5y = 20

Step 1:

x - 5y = 20

x = 5y + 20

Step 2:

2(5y + 20) - 10 y = -30

10y + 40 - 10y = -30

40 = -30

Which statement is always true? a. square bcdf is a rectangle. b. rectangle gjkm is a square. c. quadrilateral stpr is a trapezoid. d. parallelogram abcd is a rhombus.

40) linda was making chocolate truffles for the first day of school. the recipe for 20 chocolate truffles is: i cup of cream 2 cups of dark chocolate she noticed this will not be enough truffles for the 42 sure that all students in each homeroom next year. to be sure that all students receive a truffle, linda must adjust her recipe. a. complete the recipe for 42 truffles cups of cream - cups of dark chocolate work:

If log(a) = 1.2 and log(b)= 5.6, what is log(a/b)? a. 4.4b. 6.8c. not enough informationd. -4.4